Novus HDS-1

Novus HDS-1 is a superior performance high dielectric strength universal compressed sheet gasket material, based on a blend of aramid / inorganic fibres and special additives with a high quality nitrile rubber binder system.


Novus HDS-1 is a superior performance material with excellent mechanical properties, it is suitable for many applications including oils, solvents, high pressure steam and gases including oxygen. Novus HDS-1 has very high dielectric strength which makes it an ideal insulating material.

Approvals / Compliance

Complies with BS Specification 7531 Grade X
TA-LUFT (in accordance with VDI 2440)


Sheet size (m): 2.0 x 1.5
Thickness range (mm): 0.5 to 6.0

Physical properties

Thickness   1.5mm
Density   1.75g/cc
Tensile Strength ASTM F152 15MPa
Compression ASTM F36 9%
Recovery ASTM F36 55% min
Residual Stress BS 7531 (300°C)
DIN 52913
Gas Leakage BS 7531 <1.0cc/min
ASTM Oil 1 Thickness increase 1.0%
IRM 903 Oil Thickness increase 2.5%
ASTM Fuel B Thickness increase 3.0%
Dielectric Strength ASTM D149-95a 22-28 kv/mm

Novus HDS-1 Pressure/Temperature Limits

1. Suitable subject to chemical compatibility.
2. Suitable in some cases but check your application requirements with Flexitallic.
3. Contact the Technical Team for applicatis on with higher temperatures and pressures. Applicable to 1.5mm and below.

The operating temperature of non-asbestos sheet material is related to the thickness of materials selected. Thinner materials give better temperature and pressure properties.

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